Universal workholder



March Z4, 19235.

J. F. LOBBETT UNIVERSAL WORKHOLDER Filed Nov. 9, 1922 2 Sheets-Sheet 1 r z E Cil W g km y INVENTOR MFLobbew ATRNEVS Y like for holding Patented lVlr. 24, 1925.

UNITED STATES PATENT OFFICE.

.um rnANxrLoBBEfrr, vor minnnnronnnimw vomi.

UNIVERSAL wonxnonnnn.

Application mea November 9, 1922. seriai'm. 599,924.

To allwhomvz't may concern:

Be it knownthat I, JAMES FRANK Lo- BETT, a citizen of the United States of America, anda resident of Middle ort, m .the-

county of Niagai'aand State o New York, have invented `a new and Improved Uni- .versalVorkliolden of which the following is a description.

.-My invention relatesto awork holder adapted to be secured to 4thecross slideA of a lathe orto the table of a drill press or the work of various kinds. in front of the spindle of the lathe or below the tool holder of the drill press.

The general object of iny invention is to provide a work holder of the indicated character which may be readily secured' in posi-` tion and containingmeansforliolding work Y of`V various kinds and adjusting the saine to various angular positiens.'

rlhe nature of the invention and its distinguishing features and advantages will clearly appear as the description proceeds.

Reference is t0 be had to the accompanying drawings forming a part of this specification, it being understood that the draw-4 ings are merely illustrative of one example i of the invention.

Vcss

Aer applied to a lathe;

Figure 1 is a-ront elevation of my'im- 'Y proved work holder. in" theposition` it occupies when applied to a lathe;

Figure 2 is a vertical sectionas indicated by the line 2 2, Figure 1; l'

, -Figure 3 is a horizontal section on the'line l3,-3, Figure 1, a portion of the ange of the' is provided of angle form or L-shape to present a laterally disposed flange or frame portion 11 formed with holes 12 for securing it as'by bolts 13 to a cross slide A of a lathe B or for employing it withethe body of the framel 10 horizontally and the flangeL 11" verticallyas in Figure 5 which includes an additional angle lpiece 110 secured by bolts 111A to the ianofe 11 and securehby bolts 112 tothe table' of a drillf press.

-frame 10 as clearly seen in Figure 2 to have re 6 is a view similar to Figure 3' flate as'the work-hold- The body of the frame 10 extends beyond the Hang-e' 11 in the form of tension 14.' y

A threaded spindle 15 is ldisposed centrally and longitudinally in the frame 10 .turning in a bearing 16 in said frame in and positioned at what is the top of thel frame when the work holder is secured to the lathe. The spindle 15 is held against longitudinal -a depending exi movement in any suitable manner as by col- 6 lars 17, 18 at opposite sides of the bearing 16.

The numeral19 indicates the body of a vise having on the back thereof lugs 20, 21 which project into a central opening 22 o't' guided movement 4in the frame 10 longitudi-` of the opening 22, The spindle 15 eX- freely through abore inv one lug -20 and has threaded engagement with the bore of the second lug 21 so that upon the spindle being turned thevise body 19 will be caused to travel longitudinally along the spindle 15. I

A cylindrical stud-like element 23 extends through the center of the vise body 19 between the'lugs 20 and 21 and at the back of the frame 10 it receives a clampl plate-24 and a clamp nut' 25. The threaded spindle 15 passes freely through a transverse bore in the stud 23 to permit the free turning of i the spindle relatively to the stud 23 although' intersecting thelatter. Said stud 23 moves with the visebody 19 in res onse to the turning' ofthe threaded spind e 15.

The stud .or cylindrical element 23 projects at its front end beyond the vise body 19 and has a round head 26 accommodated in a depression 127 of a turnable head 27 which may thus have movement about the axis of the stud 23 and' its head 26 and relatively to the vise body 19. Onthe face of the head 95 27 are vise jaws 28 through which athreaded -s/pindle 29 passes, said spindle having right and. left' threads to engage the respective jaws 28gso that the'turning of the spindle in aigiven direction will'caus'e the jaws 28 100 to approach each other or recede for the entrance or the removal of any work to be operated upon by the tool a in a `lathe or a tool b in a drill press.

The spindle29 has aA reduced central por- 1.

tion' 30 in a bearing 31, the face plate 32 of which is secured, by screws 33 or the like, the arrangement'being such that the spindle 30 and jaws 28 will turn with the head 27 about the stud 23 as an axis. f The vise jaws 110 ..28 have lugs 35 diametrically disposed in opu posite 'directions and adapted to be received As shown in Figure 6 in grooves 34 in the head 27.

It will thus be seen that the tool holder is self-contalned including its frame, the vise body 19 and head 27 withjaws 28 and their actuating spindle 29., The vise body 19 is adjustable along the spindle 15 and carries with it the head 27 and jaws 28 while the head 27 with the jaws 28 thereon is turnable aboutI the axis of the stud 23, whereby any desired position of the work in the limitmyself strictly to theexact detailsherein illustrated, since, manifestly, the

same can be 'considerably varied without.

departure from thespirit of the invention as deiined in the appended claims.

Having thus 'described my invention, I

' claim:

1. A work holderv ofthe class'described -way tranne, said spindle extending freely through state in conclusion that while.

comprising a frame having means to secure it in position on a lathe, a drill press, or the like, of a guideway, a

and presenting in one member therey visel body movable longitudinally alongsaid guideway, actuating means for said body, a stud extending trans versely through said frame member and through said vise body, means to slidably clamp said stud and vise body on the frame, a head swivelled on said stud, and workholding jaws carried by said head.

2. A tool of the class described including a frame having a guideway, a vise bodyhaving spaced lugs extending into said guidea threaded spindle turnable in :said

one of said lugs and having threaded engagement with the other of said lugs, a stud through which `said spindle extends, said stud passing through sai-d vise body, means slidably clamping said ,vise body and stud to said frame, a head swivelled on said stud at the front of said vise body to turn' relatively to'the latter and to slide with the said body in response to the turning of said spindle, and work-holding jaws carried vby said head..

JAMES FRANK LOBBETT. 

